Superheat sensor with single coupling to fluid line

Details Superheat sensor with single coupling to fluid line Superheat sensor with single coupling to fluid line

1990-07-10

1991-12-10

Wayner, William E.

Refrigeration

With indicator or tester

Condition sensing

62225, 374143, G01K 108

Patent

active

050707060

ABSTRACT:
A superheat sensor (10, 100) for sensing the superheat of a fluid (14) flowing through a fluid channel (16) in accordance with the invention includes an aperture (18) within the fluid channel; a sensor body (20) engaging the aperture with a fluid tight seal (26) between the body and the aperture, the sensor body having a sensor body channel (44) in fluid communication with fluid flowing within the fluid channel; a pressure sensor (22) contained within the sensor body having a pressure responsive element in fluid communication with the fluid flowing through the fluid channel for producing an electrical signal representative of pressure of fluid flowing in the fluid channel; a temperature sensor (52) connected to the sensor body having at least one surface in fluid communication with the fluid flowing through the fluid channel for producing an electrical signal representation of temperature of fluid flowing in the fluid channel contacting the at least one surface; and a superheat calculator (56), responsive to the electrical signals representative of pressure and temperature, for producing, a superheat signal representative of the superheat of the fluid flowing within the fluid passage.

REFERENCES:
patent: 4236669 (1980-12-01), Kountz
patent: 4468968 (1984-09-01), Kee
patent: 4505125 (1985-03-01), Baglione
patent: 4545212 (1985-10-01), Noda
patent: 4571951 (1986-02-01), Szymaszek
patent: 4617804 (1986-10-01), Fukushima et al.
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patent: 4772132 (1988-09-01), Hofmann
patent: 4790145 (1988-12-01), Thompson et al.
"A New Technology in Energy-Efficient Electrically Driven Aircraft Environmental Control Systems", authored by W. Cloud, J. McNamara and David B. Wigmore, presented at the 21st IECEC Conference, Aug. 25-29, 1986, Article #869390 American Chemical Society, pp. 1696-1702.

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